Screen Size Range: 51-82 inches from 8 feet; 77-122 inches from 12 feetWhite Brightness: 1800 Lumens; Color Brightness: 1800 LumensContrast Ratio: NA; Keystone Correction: NA; Lens Shift: Vertical +- 71%; Horizontal +- 25%Warranty: 3 years ; Lamp Life: 6000 hoursHDMI1 HDMI2: Digital (RGBY PbCb PrCr)